[kbuild-all] [linux-next:master 948/2089] drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:1133:6: warning: variable 'ret_code' set but not used

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5fcb9628fd1227a5f11d87171cb1b8b5c414d9d9 commit: 4282c8ede1b577a8150c371bf39bbb7d622099ca [948/2089] drm/amdgpu: add stop DPG mode for VCN3.0 config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce (this is a W=1 build): git checkout 4282c8ede1b577a8150c371bf39bbb7d622099ca # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c: In function 'vcn_v3_0_disable_static_power_gating': drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:473:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 473 | int ret; | ^~~ drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c: In function 'vcn_v3_0_enable_static_power_gating': drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:525:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 525 | int ret; | ^~~ drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c: In function 'vcn_v3_0_disable_clock_gating': drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:579:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 579 | int ret = 0; | ^~~ drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c: In function 'vcn_v3_0_stop_dpg_mode': 1133 | int ret_code = 0; | ^~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:25: At top level: drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=] 190 | static const int sched_policy = KFD_SCHED_POLICY_HWS; | ^~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65, from drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c:25: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=] 67 | static const struct fixed31_32 dc_fixpt_zero = { 0 }; | ^~~~~~~~~~~~~ vim +/ret_code +1133 drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c 1130 1131 static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx) 1132 { 1134 uint32_t tmp; 1135 1136 /* Wait for power status to be 1 */ 1137 SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1, 1138 UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code); 1139 1140 /* wait for read ptr to be equal to write ptr */ 1141 tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR); 1142 SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF, ret_code); 1143 1144 tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RB_WPTR2); 1145 SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF, ret_code); 1146 1147 tmp = RREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF; 1148 SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code); 1149 1150 SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1, 1151 UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code); 1152 1153 /* disable dynamic power gating mode */ 1154 WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, mmUVD_POWER_STATUS), 0, 1155 ~UVD_POWER_STATUS__UVD_PG_MODE_MASK); 1156 1157 return 0; 1158 } 1159 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org